Full Step Jefferson Nickel prewar and war years question?

What is the market value for these FS 38-45 holdered coins? Up, down the same? It seems a little down over the last 2 years. Is that so?
Jim
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To me it seems a little higher than 2 years ago, some dates more than others. The bargain prices of the past are mostly gone. Just my opinion as a nickel enthusiast.
https://www.autismforums.com/media/albums/acrylic-colors-by-rocco.291/
Jefferson Nickels seem to be on a perpetual 20 year slide back except for the highest grades
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety," --- Benjamin Franklin